Most misunderstood Virtual Machine Manager 2012 R2 Feature


One of the most misunderstood feature in Virtual Machine Manager 2012 R2 is the cross migration of Virtual Machines from one Hyper-V Failover Cluster to another Hyper-V Failover Cluster or from one Standalone Hyper-V Host to a Hyper-V Failover Cluster.

Cross migration capability is provided by Hyper-V and the Failover Clustering feature of the Windows Server Operating System. Cross migration isn’t a feature of Virtual Machine Manager 2012 R2. It would not be wrong if we define Virtual Machine Manager as a User Interface to provide a centralized management overview for your virtualized environment.

VMM in reality uses native Hyper-V and Failover Clustering related Powershell Commands in the background if you do anything over the VMM Console UI.

The most wrong thought is that the addition of a Cluster or Standalone Hyper-V Host to a VMM 2012 R2 will automatically allow the cross migration of VM’s between Clusters or Standalone Hyper-V Hosts.

Prior to be able to cross migrate VM’s, Hyper-V and Failover Cluster must be configured. As soon as the cross migration of VM’s are possible over the Failover Cluster or over the Hyper-V Manager it will also possible over the VMM Console UI.

The addition of a Cluster or Standalone Hyper-V Host to VMM doesn’t automatically allow the cross migration of VM’s nor VMM is a required Software to cross migrate VM’s.

Some useful links regarding cross migration for your reference :

How to Move Highly Available (Clustered) VMs to Windows Server 2012 with the Cluster Migration Wizard

http://blogs.msdn.com/b/clustering/archive/2012/06/25/10323434.aspx

Migration of Highly Available Virtual Machines Using the Migrate a Cluster Wizard

http://technet.microsoft.com/en-us/library/dn486772.aspx

Migration Between Two Multi-Node Clusters

http://technet.microsoft.com/en-us/library/dn486774.aspx

Migration of Highly Available Virtual Machines Using the Migrate a Cluster Wizard

http://technet.microsoft.com/en-us/library/dn486772.aspx

Migration Between Two Multi-Node Clusters

http://technet.microsoft.com/en-us/library/dn486774.aspx

Migrating Clustered Services and Applications to Windows Server 2012

http://technet.microsoft.com/en-us/library/dn486790.aspx

Source : Most misunderstood Virtual Machine Manager 2012 R2 Feature

Cengiz Kuskaya

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